CN212291695U

CN212291695U - Roller shaft assembly and conveying roller device

Info

Publication number: CN212291695U
Application number: CN202020459849.6U
Authority: CN
Inventors: 张永峰; 蔡明元; 巫杰
Original assignee: Nanjing Tops Automation Equipment Co ltd
Current assignee: Nanjing Tops Automation Equipment Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-05
Anticipated expiration: 2030-04-01

Abstract

The application relates to the field of material transmission, and discloses a roller subassembly and conveying roller device, the roller subassembly includes the roller, rotationally installs epaxial drive wheel and setting respectively are in the first friction part and the second friction part of the both sides of drive wheel, first friction part with second friction part sets up respectively to paste and leans on the drive wheel and be located on the circumference the roller, with pass through when the drive wheel rotates the drive wheel with first friction part with frictional force between the second friction part drives the roller rotates. The application provides a technical scheme can effectively avoid the work piece to lead to producing the friction and the problem of fish tail between work piece and the conveying roller when being obstructed in transportation.

Description

Roller shaft assembly and conveying roller device

Technical Field

The application relates to the field of material conveying, and more particularly relates to a roller assembly and a conveying roller device.

Background

In modern production, conveying roller devices are usually used to convey workpieces. Specifically, a plurality of parallel conveying rollers are arranged, and workpieces are conveyed through the rotation of the conveying rollers.

At present, adopt the in-process of conveying the work piece of conveying roller device, if the work piece is obstructed can not continue to go ahead, when the power of transportation is greater than the resistance, produce between conveying roller can and the work piece and skid to produce the friction between work piece and the conveying roller and result in the work piece surface by the fish tail.

Therefore, a new technical scheme is needed to be provided to solve the problem that the surface of the workpiece is scratched due to the slippage between the workpiece and the conveying roller.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a roller assembly and a conveying roller device, which can solve the problem in the prior art that the workpiece surface is scratched due to the slippage between the workpiece and the conveying roller.

According to the application, a roller shaft assembly is provided, which comprises a roller shaft, a driving wheel rotatably mounted on the roller shaft, and a first friction part and a second friction part respectively arranged on two sides of the driving wheel;

the first friction part and the second friction part are respectively arranged to abut against the driving wheel and are circumferentially limited on the roller shaft, so that the driving wheel drives the roller shaft to rotate through friction force between the driving wheel and the first friction part and the second friction part when rotating.

Preferably, the roller shaft assembly further comprises an elastic member that urges the first friction member so that the first friction member is held pressed against the drive wheel.

Preferably, the roller shaft assembly further comprises an adjusting member configured to adjust an amount of elastic force exerted by the elastic member on the first friction member.

Preferably, the adjusting part is an adjusting nut connected to the roller shaft through threads, the adjusting nut is located on one side, away from the driving wheel, of the first friction part, the elastic part is a spiral spring sleeved on the roller shaft and located between the adjusting nut and the first friction part, and the elastic force exerted on the first friction part by the spiral spring can be adjusted by rotating the adjusting nut.

Preferably, an open groove is formed at one axial end of the first friction part and/or the second friction part, a positioning column is arranged on the roller shaft, and the positioning column is located in the open groove and limits the first friction part and/or the second friction part relative to the roller shaft in the circumferential direction.

Preferably, the first friction member and/or the second friction member respectively include a positioning sleeve sleeved on the roller shaft and a friction disc fixed to one end of the positioning sleeve close to the driving wheel and having a diameter larger than that of the positioning sleeve, the friction disc abuts against the driving wheel, and the opening groove is formed in one end of the positioning sleeve, which is away from the friction disc.

Preferably, the drive wheel is a sprocket.

According to another aspect of this application, still provide a conveying roller device, conveying roller device includes frame, running roller and a plurality of roller subassembly as above, a plurality of roller subassembly the roller is side by side and rotationally install in the frame, the running roller is fixed on the roller.

Preferably, two bearings are arranged on the roll shaft, the roll shaft is rotatably supported on the rack through the bearings, and the roller is arranged between the two bearings.

Preferably, the drive wheel and the first and second friction members are mounted on an end of the roller shaft protruding through one of the bearings.

According to the technical scheme that this application provided, the drive wheel drives the roller through the frictional force with between the friction part of both sides and rotates to the roller drives the running roller and rotates and carry the work piece. Like this, in the transportation of work piece, if the work piece receives the resistance, and when the power of transportation was greater than frictional force, the drive wheel can skid on the roller, can not produce the friction between the work piece of carrying on the running roller like this and the running roller to effectively protect the work piece surface not by the wearing and tearing fish tail.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

fig. 1 is a schematic structural view of a roller assembly (a state where a roller shaft is provided on a roller shaft) according to a preferred embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a front view of the structure shown in FIG. 1;

fig. 4 is a partial cross-sectional view of the structure shown in fig. 3.

Detailed Description

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The application provides a roller shaft assembly, as shown in fig. 1 and 2, the roller shaft assembly comprises a roller shaft, a driving wheel 2 rotatably mounted on the roller shaft 1, and a first friction part 3 and a second friction part 4 respectively arranged at two sides of the driving wheel 2; the first friction part 3 and the second friction part 4 are respectively arranged to abut against the driving wheel 2 and are circumferentially limited on the roller shaft 1, so that the roller shaft 1 is driven to rotate by friction force between the driving wheel 2 and the first friction part 3 and the second friction part 4 when the driving wheel 2 rotates.

The application provides a roll shaft assembly is used for driving the running roller to rotate thereby and carries the work piece through the rotation of running roller (set up a plurality of running rollers side by side and rotate when carrying the work piece). Fig. 1 shows that the roller shaft 1 is provided with a roller 9, and when the driving wheel 2 rotates under the driving action of the driving device, the roller shaft 1 can be driven to rotate by the friction force between the friction parts on the two sides, so that the roller shaft 1 drives the roller 9 to rotate to convey workpieces. In the conveying process of the workpiece, when the workpiece is subjected to resistance, the conveying force (the driving force applied by the driving wheel 2) is greater than the friction force, so that the driving wheel 2 can slip on the roller shaft 1, the roller shaft 1 stops rotating, and the workpiece conveyed on the roller 9 and the roller 9 cannot generate friction, so that the surface of the workpiece is protected from being scratched.

In one embodiment of the present application, as shown in fig. 1 and 2, the roller axle assembly further comprises an elastic member that applies a force to the first friction member 3 such that the first friction member 3 is kept pressed against the driving wheel 2.

In the present embodiment, the second friction member 4 is provided so as to be axially upper-limited, and when the first friction member 3 is pressed against the drive wheel 2, the drive wheel 2 is simultaneously pressed against the second friction member 4, thereby ensuring the frictional force between the first friction member 3 and the drive wheel 2 and the second friction member 4.

It will be understood that elastic members may be provided for the first friction member 3 and the second friction member 4, respectively, to press the first friction member 3 and the second friction member 4 against the driving wheel 2 via the elastic members, respectively.

In this embodiment, the roller shaft assembly preferably further includes an adjusting member configured to adjust an amount of elastic force applied to the first friction member 3 by the elastic member.

As shown in fig. 2, the adjusting member is an adjusting nut 6 screwed to the roller shaft 1, the adjusting nut 6 is located on a side of the first friction member 3 away from the driving wheel 2, the elastic member is a coil spring 5 sleeved on the roller shaft 1 and located between the adjusting nut 6 and the first friction member 3, and the elastic force exerted on the first friction member 3 by the coil spring 5 can be adjusted by rotating the adjusting nut 6.

Those skilled in the art will appreciate that the adjusting member for adjusting the magnitude of the force exerted by the elastic member on the first friction member 3 is not limited to the form of a nut, and may be, for example, a structure that can move in the axial direction of the roller shaft 1 and can be positioned at various positions on the roller shaft 1.

In the present embodiment, in order to position the first friction member 3 and the second friction member 4 on the roller shaft 1 in the circumferential direction, as shown in fig. 2, one end of the first friction member 3 and one end of the second friction member 4 in the axial direction are respectively provided with an open groove 33, the roller shaft 1 is provided with a positioning column 7, and the positioning column 7 is positioned in the open groove 33 to position the first friction member 3 and the second friction member 4 relative to the roller shaft 1 in the circumferential direction.

In the present embodiment, the first friction member 3 and the second friction member 4 are both limited by the way of engaging the open groove 33 with the positioning column 7, but in another embodiment, one of the first friction member 3 and the second friction member 4 may be limited by this way, and the other may be limited by another way, for example, by way of engaging a key and a key groove.

Further, the first friction member 3 and the second friction member 4 respectively include a positioning sleeve 32 sleeved on the roller shaft 1 and a friction disc 31 fixed to one end of the positioning sleeve 32 close to the driving wheel 2 and having a diameter larger than that of the positioning sleeve 32, the friction disc 31 abuts against the driving wheel 2, and the opening groove 33 is disposed at one end of the positioning sleeve 32 away from the friction disc 31.

As shown in fig. 4, the positioning column 7 may penetrate through the roller shaft 1 in the radial direction, so that the positioning column 7 may be matched with the opening grooves 33 at two opposite sides of the positioning sleeve 32 for limiting.

In the present embodiment, the drive wheel 2 for driving the roller shaft 1 to rotate is preferably a sprocket, and the drive wheel 2 is provided as a sprocket, so that a plurality of roller shaft assemblies arranged in parallel can be driven by a chain. Of course, the drive wheel 2 is not limited to the form of a sprocket wheel, but may be, for example, a gear wheel.

According to another aspect of this application, still provide a conveying roller device, conveying roller device includes frame, running roller 9 and a plurality of roller subassembly as described above, a plurality of roller subassembly roller 1 just installs side by side and rotationally in the frame, running roller 9 is fixed on roller 1.

Further, as shown in fig. 1, two bearings 8 are provided on the roller shaft 1, the roller shaft 1 is rotatably supported on the frame by the bearings 8, and the roller 9 is installed between the two bearings 8.

Preferably, the drive wheel 2 and the first and

second friction members

3, 4 are mounted on the end of the roller shaft 1 protruding through one of the bearings 8, i.e. the drive mechanism driving the roller shaft 1 in rotation is located at the end of the roller shaft 1.

The conveying roller device provided by the application conveys workpieces, when the workpieces are blocked in the conveying process, the driving wheel 2 can slip with the roller shaft 1, and therefore the situation that the surfaces of the workpieces are abraded and scratched in the prior art is effectively avoided.

The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.

Claims

1. The roller shaft assembly is characterized by comprising a roller shaft (1), a driving wheel (2) rotatably mounted on the roller shaft (1), and a first friction part (3) and a second friction part (4) which are respectively arranged on two sides of the driving wheel (2); the first friction part (3) and the second friction part (4) are respectively arranged to abut against the driving wheel (2) and are circumferentially limited on the roller shaft (1), so that when the driving wheel (2) rotates, the roller shaft (1) is driven to rotate through friction force between the driving wheel (2) and the first friction part (3) and the second friction part (4).

2. A roller axle assembly according to claim 1, characterized in that it further comprises an elastic member, which exerts a force on the first friction member (3) such that the first friction member (3) remains pressed against the drive wheel (2).

3. A roller axle assembly according to claim 2, characterized in that it further comprises an adjustment member arranged to be able to adjust the amount of spring force exerted by the resilient member on the first friction member (3).

4. A roller assembly according to claim 3, characterized in that the adjusting member is an adjusting nut (6) which is screwed onto the roller shaft (1), the adjusting nut (6) is located on the side of the first friction member (3) facing away from the driving wheel (2), the elastic member is a spiral spring (5) which is sleeved on the roller shaft (1) and located between the adjusting nut (6) and the first friction member (3), and the amount of the elastic force exerted by the spiral spring (5) on the first friction member (3) can be adjusted by rotating the adjusting nut (6).

5. A roller assembly according to any one of claims 1-4, characterized in that one end of the first friction part (3) and/or the second friction part (4) in the axial direction is provided with an open groove (33), the roller shaft (1) is provided with a positioning column (7), and the positioning column (7) is positioned in the open groove (33) to limit the first friction part (3) and/or the second friction part (4) in the circumferential direction relative to the roller shaft (1).

6. A roller assembly according to claim 5, characterized in that the first friction member (3) and/or the second friction member (4) respectively comprise a locating sleeve (32) which is sleeved on the roller shaft (1) and a friction disc (31) which is fixed to one end of the locating sleeve (32) close to the driving wheel (2) and has a larger diameter than the locating sleeve (32), the friction disc (31) abuts against the driving wheel (2), and the opening groove (33) is arranged at one end of the locating sleeve (32) which faces away from the friction disc (31).

7. A roller axle assembly according to claim 1, characterized in that the driving wheel (2) is a sprocket wheel.

8. A conveyor roller device, characterized in that it comprises a frame, rollers (9) and a number of roller assemblies according to any one of claims 1-7, the rollers (1) of which are mounted side by side and rotatably in the frame, the rollers (9) being fixed to the rollers (1).

9. The conveyor roller device as claimed in claim 8, characterized in that two bearings (8) are provided on the roller shaft (1), the roller shaft (1) being rotatably supported on the frame by means of the bearings (8), the roller wheel (9) being mounted between the two bearings (8).

10. The conveyor roller device according to claim 9, characterized in that the drive wheel (2) and the first and second friction members (3, 4) are mounted on the end of the roller shaft (1) protruding one of the bearings (8).